Audiomix merge

src/CMakeLists.txt

@@ -41,6 +41,7 @@ endif()
 ### Find source files
 add_subdirectory(abstractmodel)
 add_subdirectory(assets)
+add_subdirectory(audiomixer)
 add_subdirectory(bin)
 add_subdirectory(capture)
 add_subdirectory(dialogs)

src/audiomixer/CMakeLists.txt

+set(kdenlive_SRCS
+  ${kdenlive_SRCS}
+  audiomixer/mixerwidget.cpp
+  audiomixer/audiolevelwidget.cpp
+  audiomixer/mixermanager.cpp  PARENT_SCOPE)
+
+

src/audiomixer/audiolevelwidget.cpp

+/*
+Copyright (C) 2016  Jean-Baptiste Mardelle <jb@kdenlive.org>
+This file is part of Kdenlive. See www.kdenlive.org.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of
+the License or (at your option) version 3 or any later version
+accepted by the membership of KDE e.V. (or its successor approved
+by the membership of KDE e.V.), which shall act as a proxy
+defined in Section 14 of version 3 of the license.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "audiolevelwidget.hpp"
+#include "core.h"
+#include "profiles/profilemodel.hpp"
+
+#include "mlt++/Mlt.h"
+
+#include <cmath>
+
+#include <QFont>
+#include <QPaintEvent>
+#include <QPainter>
+#include <QFontDatabase>
+
+const double log_factor = 1.0 / log10(1.0 / 127);
+
+static inline double levelToDB(double level)
+{
+    if (level <= 0) {
+        return -100;
+    }
+    return 100 * (1.0 - log10(level) * log_factor);
+}
+
+AudioLevelWidget::AudioLevelWidget(int width, QWidget *parent)
+    : QWidget(parent)
+    , audioChannels(2)
+    , m_width(width)
+    , m_channelWidth(width / 2)
+    , m_channelDistance(2)
+    , m_channelFillWidth(m_channelWidth)
+{
+    setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
+    setFont(QFontDatabase::systemFont(QFontDatabase::SmallestReadableFont));
+    QFont ft = font();
+    ft.setPointSizeF(font().pointSize() * 0.8);
+    setFont(ft);
+    setMinimumWidth(4);
+}
+
+AudioLevelWidget::~AudioLevelWidget()
+{
+}
+
+void AudioLevelWidget::resizeEvent(QResizeEvent *event)
+{
+    drawBackground(m_peaks.size());
+}
+
+void AudioLevelWidget::refreshPixmap()
+{
+    drawBackground(m_peaks.size());
+}
+
+void AudioLevelWidget::drawBackground(int channels)
+{
+    if (height() == 0) {
+        return;
+    }
+    QSize newSize = QWidget::size();
+    if (!newSize.isValid()) {
+        return;
+    }
+    m_offset = fontMetrics().boundingRect(QStringLiteral("-45")).width() + 5;
+    newSize.setWidth(newSize.width() - m_offset);
+    QLinearGradient gradient(0, newSize.height(), 0, 0);
+    gradient.setColorAt(0.0, Qt::darkGreen);
+    gradient.setColorAt(0.379, Qt::darkGreen);
+    gradient.setColorAt(0.38, Qt::green); // -20db
+    gradient.setColorAt(0.868, Qt::green);
+    gradient.setColorAt(0.869, Qt::yellow); // -2db
+    gradient.setColorAt(0.95, Qt::yellow);
+    gradient.setColorAt(0.951, Qt::red); // 0db
+    m_pixmap = QPixmap(QWidget::size());
+    if (m_pixmap.isNull()) {
+        return;
+    }
+    m_pixmap.fill(Qt::transparent);
+    int totalWidth;
+    if (channels < 2) {
+        m_channelWidth = newSize.width() / 2;
+        totalWidth = m_channelWidth;
+    } else {
+        m_channelWidth = (newSize.width() - (channels - 1)) / channels;
+        totalWidth= channels * m_channelWidth + (channels - 1);
+    }
+    QRect rect(m_offset, 0, newSize.width(), newSize.height());
+    QPainter p(&m_pixmap);
+    p.setOpacity(0.4);
+    p.setFont(font());
+    p.fillRect(rect, QBrush(gradient));
+
+    // Channel labels are vertical along the bottom.
+    QVector<int> dbscale;
+    dbscale << 0 << -2 << -5 << -10 << -15 << -20 << -30 << -45;
+    int dbLabelCount = dbscale.size();
+    // dB scale is vertical along the bottom
+    int labelHeight = fontMetrics().ascent();
+    for (int i = 0; i < dbLabelCount; i++) {
+        int value = dbscale.at(i);
+        QString label = QString().sprintf("%d", value);
+        //int labelWidth = fontMetrics().width(label);
+        double xf = m_pixmap.height() - pow(10.0, (double)dbscale.at(i) / 50.0) * m_pixmap.height() * 40.0 / 42;
+        /*if (xf + labelWidth / 2 > m_pixmap.height()) {
+            xf = height() - labelWidth / 2;
+        }*/
+        p.setPen(palette().dark().color());
+        p.drawLine(m_offset, xf, m_offset + totalWidth - 1, xf);
+        xf -= labelHeight * 2 / 3;
+        p.setPen(palette().text().color().rgb());
+        p.drawText(QRectF(0, xf, m_offset - 5, labelHeight), label, QTextOption(Qt::AlignRight));
+    }
+    p.setOpacity(isEnabled() ? 1 : 0.5);
+    p.setPen(palette().dark().color());
+    // Clear space between the 2 channels
+    p.setCompositionMode(QPainter::CompositionMode_Source);
+    if (m_channelWidth < 4) {
+        // too many audio channels, simple line between channels
+        m_channelDistance = 1;
+        m_channelFillWidth = m_channelWidth;
+        for (int i = 0; i < channels; i++) {
+            p.drawLine(m_offset + i * (m_channelWidth + m_channelDistance), 0, i * (m_channelWidth + m_channelDistance), rect.height() - 1);
+        }
+    } else {
+        m_channelDistance = 2;
+        m_channelFillWidth = m_channelWidth - 2;
+        for (int i = 0; i < channels; i++) {
+            p.drawRect(m_offset + i * (m_channelWidth + m_channelDistance), 0, m_channelWidth - 1, rect.height() - 1);
+            if (i > 0) {
+                p.fillRect(m_offset + i * (m_channelWidth + m_channelDistance) - 2, 0, 2, rect.height(), Qt::transparent);
+            }
+        }
+    }
+    p.end();
+}
+
+// cppcheck-suppress unusedFunction
+void AudioLevelWidget::setAudioValues(const QVector<int> &values)
+{
+    m_values = values;
+    if (m_peaks.size() != m_values.size()) {
+        m_peaks = values;
+        drawBackground(values.size());
+    } else {
+        for (int i = 0; i < m_values.size(); i++) {
+            m_peaks[i]--;
+            if (m_values.at(i) > m_peaks.at(i)) {
+                m_peaks[i] = m_values.at(i);
+            }
+        }
+    }
+    update();
+}
+
+void AudioLevelWidget::setVisibility(bool enable)
+{
+    if (enable) {
+        setVisible(true);
+        setFixedWidth(m_width);
+    } else {
+        // set height to 0 so the toolbar layout is not affected
+        setFixedHeight(0);
+        setVisible(false);
+    }
+}
+
+void AudioLevelWidget::paintEvent(QPaintEvent *pe)
+{
+    if (!isVisible()) {
+        return;
+    }
+    QPainter p(this);
+    p.setClipRect(pe->rect());
+    QRect rect(0, 0, width(), height());
+    if (m_values.isEmpty()) {
+        p.setOpacity(0.2);
+        p.drawPixmap(rect, m_pixmap);
+        return;
+    }
+    p.drawPixmap(rect, m_pixmap);
+    p.setPen(palette().dark().color());
+    p.setOpacity(0.9);
+    int width = m_channelDistance == 1 ? rect.width() : rect.width() - 1;
+    for (int i = 0; i < m_values.count(); i++) {
+        if (m_values.at(i) >= 100) {
+            continue;
+        }
+        int val = (50 + m_values.at(i)) / 150.0 * rect.height();
+        p.fillRect(m_offset + i * (m_channelWidth + m_channelDistance) + 1, 0, m_channelFillWidth, height() - val, palette().dark());
+        p.fillRect(m_offset + i * (m_channelWidth + m_channelDistance) + 1, height() - (50 + m_peaks.at(i)) / 150.0 * rect.height(), m_channelFillWidth, 1, palette().text());
+    }
+}

src/audiomixer/audiolevelwidget.hpp

+/*
+Copyright (C) 2016 Jean-Baptiste Mardelle <jb@kdenlive.org>
+This file is part of Kdenlive. See www.kdenlive.org.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of
+the License or (at your option) version 3 or any later version
+accepted by the membership of KDE e.V. (or its successor approved
+by the membership of KDE e.V.), which shall act as a proxy
+defined in Section 14 of version 3 of the license.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef AUDIOLEVELWIDGET_H
+#define AUDIOLEVELWIDGET_H
+
+#include <QWidget>
+#include <memory>
+
+namespace Mlt {
+class Filter;
+} // namespace Mlt
+
+class AudioLevelWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit AudioLevelWidget(int width, QWidget *parent = nullptr);
+    ~AudioLevelWidget() override;
+    void refreshPixmap();
+    int audioChannels;
+    bool isValid;
+    void setVisibility(bool enable);
+
+protected:
+    void paintEvent(QPaintEvent *) override;
+    void resizeEvent(QResizeEvent *event) override;
+
+private:
+    std::unique_ptr<Mlt::Filter> m_filter;
+    int m_width;
+    int m_offset;
+    QPixmap m_pixmap;
+    QVector<int> m_peaks;
+    QVector<int> m_values;
+    int m_channelWidth;
+    int m_channelDistance;
+    int m_channelFillWidth;
+    void drawBackground(int channels = 2);
+
+public slots:
+    void setAudioValues(const QVector<int> &values);
+};
+
+#endif

src/audiomixer/mixermanager.cpp

+/***************************************************************************
+ *   Copyright (C) 2019 by Jean-Baptiste Mardelle                          *
+ *   This file is part of Kdenlive. See www.kdenlive.org.                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) version 3 or any later version accepted by the       *
+ *   membership of KDE e.V. (or its successor approved  by the membership  *
+ *   of KDE e.V.), which shall act as a proxy defined in Section 14 of     *
+ *   version 3 of the license.                                             *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
+ ***************************************************************************/
+
+#include "mixermanager.hpp"
+#include "mixerwidget.hpp"
+#include "timeline2/model/timelineitemmodel.hpp"
+
+#include "mlt++/MltService.h"
+#include "mlt++/MltTractor.h"
+
+#include <klocalizedstring.h>
+#include <QHBoxLayout>
+#include <QModelIndex>
+
+const double log_factor = 1.0 / log10(1.0 / 127);
+
+static inline double levelToDB(double level)
+{
+    if (level <= 0) {
+        return -100;
+    }
+    return 100 * (1.0 - log10(level) * log_factor);
+}
+
+MixerManager::MixerManager(QWidget *parent)
+    : QWidget(parent)
+    , renderPosition(0)
+    , m_connectedWidgets(0)
+{
+    m_box = new QHBoxLayout;
+    m_box->addStretch(10);
+    setLayout(m_box);
+    m_timer.setSingleShot(true);
+    m_timer.setInterval(100);
+    connect(&m_timer, &QTimer::timeout, [&] () {
+        for (auto w : m_mixers) {
+            w.second->updateAudioLevel(m_lastFrame);
+        }
+    });
+}
+
+void MixerManager::registerTrack(int tid, std::shared_ptr<Mlt::Tractor> service, const QString &trackTag)
+{
+    if (m_mixers.count(tid) > 0) {
+        // Track already registered
+        return;
+    }
+    std::shared_ptr<MixerWidget> mixer(new MixerWidget(tid, service, trackTag, this));
+    connect(mixer.get(), &MixerWidget::muteTrack, [&](int id, bool mute) {
+        m_model->setTrackProperty(id, "hide", mute ? QStringLiteral("1") : QStringLiteral("3"));
+    });
+    connect(this, &MixerManager::updateLevels, mixer.get(), &MixerWidget::updateAudioLevel);
+    connect(mixer.get(), &MixerWidget::updateConnection, [&](int id, bool doConnect) {
+        //connect(this, &MixerManager::storeLevels, m_mixers[id].get(), &MixerWidget::storeAudioLevel, Qt::DirectConnection);
+        m_connectedWidgets++;
+        if (m_connectedWidgets == 1) {
+            emit connectMixerRenderer(true);
+        }
+    });
+
+    connect(mixer.get(), &MixerWidget::toggleSolo, [&](int trid, bool solo) {
+        if (!solo) {
+            // unmute
+            for (int id : m_soloMuted) {
+                if (m_mixers.count(id) > 0) {
+                    m_model->setTrackProperty(id, "hide", QStringLiteral("1"));
+                }
+            }
+            m_soloMuted.clear();
+        } else {
+            if (!m_soloMuted.isEmpty()) {
+                // Another track was solo, discard first
+                for (int id : m_soloMuted) {
+                    if (m_mixers.count(id) > 0) {
+                        m_model->setTrackProperty(id, "hide", QStringLiteral("1"));
+                    }
+                }
+                m_soloMuted.clear();
+            }
+            for (auto item : m_mixers) {
+                if (item.first > -1 && item.first != trid && !item.second->isMute()) {
+                    m_model->setTrackProperty(item.first, "hide", QStringLiteral("3"));
+                    m_soloMuted << item.first;
+                    item.second->unSolo();
+                }
+            }
+        }
+    });
+    m_mixers[tid] = mixer;
+    m_box->insertWidget(0, mixer.get());
+}
+
+void MixerManager::deregisterTrack(int tid)
+{
+    Q_ASSERT(m_mixers.count(tid) > 0);
+    m_mixers.erase(tid);
+}
+
+void MixerManager::resetAudioValues()
+{
+    qDebug()<<"======\n\nRESTTING AUDIO VALUES\n\n------------------_";
+    for (auto item : m_mixers) {
+        item.second.get()->clear();
+    }
+}
+
+void MixerManager::cleanup()
+{
+    for (auto item : m_mixers) {
+        m_box->removeWidget(item.second.get());
+    }
+    m_mixers.clear();
+    m_connectedWidgets = 0;
+}
+
+void MixerManager::setModel(std::shared_ptr<TimelineItemModel> model)
+{
+    // Insert master mixer
+    int tid = -1;
+    m_model = model;
+    connect(m_model.get(), &TimelineItemModel::dataChanged, [&](const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles) {
+        if (roles.contains(TimelineModel::IsDisabledRole)) {
+            int id = (int) topLeft.internalId();
+            if (m_mixers.count(id) > 0) {
+                m_mixers[id]->setMute(m_model->data(topLeft, TimelineModel::IsDisabledRole).toBool());
+            } else {
+                qDebug()<<"=== MODEL DATA CHANGED: MUTE DONE TRACK NOT FOUND!!!";
+            }
+        }
+    });
+
+    Mlt::Tractor *service = model->tractor();
+    if (m_mixers.count(tid) > 0) {
+        // delete previous master mixer
+        m_box->removeWidget(m_mixers[tid].get());
+        m_mixers.erase(tid);
+    }
+    std::shared_ptr<MixerWidget> mixer(new MixerWidget(tid, service, i18n("Master"), this));
+    connect(mixer.get(), &MixerWidget::muteTrack, [&](int /*id*/, bool mute) {
+        qDebug()<<"=== SETTING MUITE";
+        m_model->tractor()->set("hide", mute ? 3 : 1);
+    });
+    connect(this, &MixerManager::updateLevels, mixer.get(), &MixerWidget::updateAudioLevel);
+    connect(mixer.get(), &MixerWidget::updateConnection, [&](int id, bool doConnect) {
+        //connect(this, &MixerManager::storeLevels, m_mixers[id].get(), &MixerWidget::storeAudioLevel, Qt::DirectConnection);
+        m_connectedWidgets++;
+        if (m_connectedWidgets == 1) {
+            emit connectMixerRenderer(true);
+        }
+    });
+    m_mixers[tid] = mixer;
+    m_box->insertWidget(0, mixer.get());
+}
+

src/audiomixer/mixermanager.hpp

+/***************************************************************************
+ *   Copyright (C) 2019 by Jean-Baptiste Mardelle                          *
+ *   This file is part of Kdenlive. See www.kdenlive.org.                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) version 3 or any later version accepted by the       *
+ *   membership of KDE e.V. (or its successor approved  by the membership  *
+ *   of KDE e.V.), which shall act as a proxy defined in Section 14 of     *
+ *   version 3 of the license.                                             *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
+ ***************************************************************************/
+
+#ifndef MIXERMANGER_H
+#define MIXERMANGER_H
+
+#include "definitions.h"
+#include <memory>
+#include <unordered_map>
+
+#include <QWidget>
+#include <QTimer>
+
+namespace Mlt {
+    class Tractor;
+}
+
+class MixerWidget;
+class QHBoxLayout;
+class TimelineItemModel;
+
+class MixerManager : public QWidget
+{
+    Q_OBJECT
+
+public:
+    MixerManager(QWidget *parent);
+    /* @brief Shows the parameters of the given transition model */
+    void registerTrack(int tid, std::shared_ptr<Mlt::Tractor> service, const QString &trackTag);
+    void deregisterTrack(int tid);
+    void setModel(std::shared_ptr<TimelineItemModel> model);
+    void cleanup();
+
+public slots:
+    void resetAudioValues();
+
+signals:
+    void updateLevels(int);
+    void connectMixerRenderer(bool);
+    void triggerUpdate();
+
+public:
+    int renderPosition;
+
+protected:
+    std::unordered_map<int, std::shared_ptr<MixerWidget>> m_mixers;
+
+private:
+    std::shared_ptr<Mlt::Tractor> m_masterService;
+    std::shared_ptr<TimelineItemModel> m_model;
+    QHBoxLayout *m_box;
+    QTimer m_timer;
+    int m_lastFrame;
+    int m_connectedWidgets;
+    QVector <int> m_soloMuted;
+
+};
+
+#endif
+

src/audiomixer/mixerwidget.cpp

+/***************************************************************************
+ *   Copyright (C) 2019 by Jean-Baptiste Mardelle                          *
+ *   This file is part of Kdenlive. See www.kdenlive.org.                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) version 3 or any later version accepted by the       *
+ *   membership of KDE e.V. (or its successor approved  by the membership  *
+ *   of KDE e.V.), which shall act as a proxy defined in Section 14 of     *
+ *   version 3 of the license.                                             *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
+ ***************************************************************************/
+
+#include "mixerwidget.hpp"
+
+#include "mlt++/MltFilter.h"
+#include "mlt++/MltTractor.h"
+#include "mlt++/MltProfile.h"
+#include "mixerwidget.hpp"
+#include "mixermanager.hpp"
+#include "audiolevelwidget.hpp"
+
+#include <klocalizedstring.h>
+#include <KDualAction>
+#include <QGridLayout>
+#include <QToolButton>
+#include <QCheckBox>
+#include <QSlider>
+#include <QSpinBox>
+#include <QDial>
+#include <QLabel>
+#include <QFontDatabase>
+
+const double log_factor = 1.0 / log10(1.0 / 127);
+
+static inline int levelToDB(double level)
+{
+    if (level <= 0) {
+        return -100;
+    }
+    return 100 * (1.0 - log10(level) * log_factor);
+}
+
+void MixerWidget::property_changed( mlt_service , MixerWidget *widget, char * /*name*/ )
+{
+    if (!widget->m_levels.contains(widget->m_manager->renderPosition)) {
+        widget->m_levels[widget->m_manager->renderPosition] = {levelToDB(mlt_properties_get_double(MLT_FILTER_PROPERTIES(widget->m_monitorFilter->get_filter()), "_audio_level.0")), levelToDB(mlt_properties_get_double(MLT_FILTER_PROPERTIES(widget->m_monitorFilter->get_filter()), "_audio_level.1"))};
+    }
+}